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Still under testing!

Introduction

This library is a port of Larry Hunter's Lisp statistics library to chicken scheme.

The library provides a number of formulae and methods taken from the book "Fundamentals of Biostatistics" by Bernard Rosner (5th edition).

Provided Functions

Utilities

average-rank

beta-incomplete

bin-and-count

combinations

factorial

find-critical-value

fisher-z-transform

gamma-incomplete

gamma-ln

permutations

random-normal

[procedure](random-pick items)

given a list of items, returns a random item. <procedure>(random-sample n items)</procedure> given a number of items to select and a list of items to select from, returns a random sample without replacement of size n. <procedure>(sign n)</procedure> given a number n, returns 0, 1 or -1 according to if n is zero, positive or negative. <procedure>(square n)</procedure> given a number n, returns the square of n.